
//获得coolie 的值
function cookie(name) {
	var cookieArray = document.cookie.split("; "); // 得到分割的cookie名值对
	for (var i = 0; i < cookieArray.length; i++) {
		var arr = cookieArray[i].split("="); // 将名和值分开
		if (arr[0] == name)
			return unescape(arr[1]); // 如果是指定的cookie，则返回它的值
	}
	return "";
}

/*
 * function delCookie(name)//删除cookie { document.cookie = name+"=;expires="+(new
 * Date(0)).toGMTString(); }
 */
function getCookie(objName) {// 获取指定名称的cookie的值
	var arrStr = document.cookie.split("; ");
	for (var i = 0; i < arrStr.length; i++) {
		var temp = arrStr[i].split("=");
		if (temp[0] == objName)
			return unescape(temp[1]);
	}
}

function addCookie(objName, objValue, objHours, url) { // 添加cookie
	var str = objName + "=" + escape(objValue);
	if (objHours > 0) { // 为时不设定过期时间，浏览器关闭时cookie自动消失
		var date = new Date();
		var ms = objHours * 3600 * 1000;
		date.setTime(date.getTime() + ms);
		str += "; expires=" + date.toGMTString();
	}
	if (arguments.length == 4) {
		document.cookie = str+";path="+url;
	} else {
		document.cookie = str;
	}
}

function setCookie(name, value, Days)// 三个参数，一个是cookie的名子，一个是值,一个是保存时间，如果为0则关闭浏览器是cookie自动消失
{
	var str = name + "=" + escape(value)+";path=/";
	if (Days>0) {
		var exp = new Date(); // new Date("December 31, 9998");
		exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
		str += ";expires=" + exp.toGMTString();
	}
	document.cookie = str;
}

/*function setCookie(name, value)// 两个参数，一个是cookie的名子，一个是值
{
	var Days = 15; // 此 cookie 将被保存 15 天
	var exp = new Date(); // new Date("December 31, 9998");
	exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
	document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
}*/

function getCookie(name)// 取cookies函数
{
	var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
	if (arr != null)
		return unescape(arr[2]);
	return null;
}

function delCookie(name,url)// 删除cookie
{
	var exp = new Date();
	exp.setTime(exp.getTime() - 1);
	var cval = getCookie(name);
	if (cval != null) {
			document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString()+";path=/";
	}
}

